RobustToolbox/Robust.Shared/GameObjects/Systems/SharedVisibilitySystem.cs

namespace Robust.Shared.GameObjects;

public abstract class SharedVisibilitySystem : EntitySystem
{
    public virtual void AddLayer(Entity<VisibilityComponent?> ent, ushort layer, bool refresh = true)
    {
    }

    public virtual void RemoveLayer(Entity<VisibilityComponent?> ent, ushort layer, bool refresh = true)
    {
    }

    public virtual void SetLayer(Entity<VisibilityComponent?> ent, ushort layer, bool refresh = true)
    {
    }

    public virtual void RefreshVisibility(EntityUid uid,
        VisibilityComponent? visibilityComponent = null,
        MetaDataComponent? meta = null)
    {
    }

    public virtual void RefreshVisibility(Entity<VisibilityComponent?, MetaDataComponent?> ent)
    {
    }
}